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dc.contributor.authorMontagner, Denise Baptaglin
dc.contributor.authorNascimento Júnior, Domicio do
dc.contributor.authorSousa, Braulio Maia de Lana
dc.contributor.authorVilela, Hélio Henrique
dc.contributor.authorEuclides, Valéria Pacheco Batista
dc.contributor.authorSilva, Sila Carneiro da
dc.contributor.authorSbrissia, André Fischer
dc.contributor.authorCarloto, Marciele Neves
dc.date.accessioned2017-12-13T16:29:54Z
dc.date.available2017-12-13T16:29:54Z
dc.date.issued2010-12-29
dc.identifier.issn1806-9290
dc.identifier.urihttp://dx.doi.org/10.1590/S1516-35982011001000006
dc.identifier.urihttp://www.locus.ufv.br/handle/123456789/14955
dc.description.abstractThe objective of this research was to evaluate the effects of tiller age on morphogenic and structural characteristics of guinea grass cv. Mombaca subjected to intermittent stocking and three stubble heights: 30 cm, 50 cm and 50-30 cm. Stubble heights were assigned to experimental units in a completely randomized block design with three replicates. Grazing was performed when canopy intercepted 95% of light incidence. Leaf appearance rate, leaf elongation rate and number of live leaves per tiller were higher in the summer when compared with the winter. Contrarily, stem elongation rate, phyllochron and leaf lifespan were lower in the summer when compared with the winter. During the summer, young tillers had higher leaf appearance and elongation rates when compared with the older ones. Young and mature tillers had the highest values of live leaves per tiller in the summer. There was no difference between summer and winter for the final length of leaf blade between tillers of the same age, except in mature tillers, which had higher final leaf length during the summer. Senescence rate of leaves was higher in young tillers, followed by mature and old tillers. Age of tiller affects morphogenic and structural characteristics of pasture, showing that young tillers have better growth compared with mature and old tillers.en
dc.formatpdfpt-BR
dc.language.isoengpt-BR
dc.publisherRevista Brasileira de Zootecniapt-BR
dc.relation.ispartofseriesv. 40, n. 10, p. 2105-2110, Oct. 2011pt-BR
dc.rightsOpen Accesspt-BR
dc.subjectEcophysiologypt-BR
dc.subjectLight interceptionpt-BR
dc.subjectPanicum maximumpt-BR
dc.subjectStubble heightpt-BR
dc.titleMorphogenetic and structural characteristics of tillers of guinea grass of different age and grazing severitiesen
dc.typeArtigopt-BR
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